Cotton stripping process



Oct. 28, 1941.

G. C. WARNER COTTON STRIPPING PROCESS Filed Feb. 5, 1958 4 Sheets-Sheet l Oct. 28, 1941. G. c. WARNVER 2,260,355

COTTON STRIPPING PROCES 5 Filed Feb. 5, 1938 4 Sheets-Sheet 2 G7607:Q6 C. war/767,"

Oct. 28, 1941.

G. C. WARNER COTTON STRIPPING PROCESS Filed Feb. 5, 1958 4 Sheets-Sheet 3 Oct. 28, 1941. G. c. WARNER 2,260,355

COTTON STRIPPING PROCESS Filed Feb. 5, 1938 4 Sheets-Sheet 4 I 1 5 i] k k Q r Y filed March 16, 1936.

Patented Oct. 28, 1941 UNITED STATES PATE corroNs'rnlrrlu -rnocnss George C. Warner, LaPorte, Ind., assignor to 7 Deluxe Products Gorporatiolnfa corporationofi Indiana Application February 5, 1938,'SerialNo. 189,017 T1 '1 Claim. (01. 19,- 83) I This invention relates to a cotton stripping machine, I and more particularly a machine designed to produce cotton strands of a suitable size andlength for the production of filter cartridges inaccordance with Hurn application No. 66,217,

For this purpose the starting material is preferably pure cotton thread free from lint and short ends. It is known in the trade as thread stock in knotted form consisting of broken bobbins of various size threads. These broken bobbins are partially wound spools of thread in which the thread has broken before completion of the spool. These broken bobbins are sold in an entangled mass partially wound and partially unwound. As sold the material is worthless for oil filtration purposes because of the irregularity of its structure. Before use the wound portions thereof must be broken into threads of the proper length. A preferable material is known as No. 659 white yarn waste and preferably has a minimum thread size of '70 and a maximum of not over 40 and in the form of yarns containing from to 200 threads in each strand.

The device here shown is adapted to take raw material of this type and put it into the ribbon form described in I-Iurn application 69,217.

The device is illustrated in the drawings in which: Figure 1 is a somewhat diagrammatic longitudinal elevation partly in section viewing the machine from the right; Figure 2 is a plan view; Figure 3 is a longitudinal elevation viewing the machine from the left; and Figure 4 is a sectional view corresponding to Fig. 3.

The apparatus comprises a base 16 upon which is mounted a fly wheel 2! onv the shaft 22 and which is driven by the belt 26. The shaft 22 extends through the machine and on its opposite ends (as shown in Fig. 2) are mounted two pulleys 23 and 24. i

The outer pulley 23 is provided with a belt 25- connected to the pulley 26, which is secured on shaft 28. An idler pulley 21 is likewise provided on the shaft to which the belt may be shifted when desired.

A pinion 29 (see Fig. 3) is mounted on the shaft 28 and meshes with idler 36, which, in turn, meshes with gear 3| on the shaft 32. A pinion 33 on the shaft meshes with gear 34 on the shaft 35. A doifer roll 36 is mounted on this shaft and is provided with a plurality of teeth 45, which are slanted backwardly with reference to the direction of motion of the dofier.

The pulley 24 is a relatively high speed pulley provided with a belt 31 leading to shaft 38, upon which cam arm 46 which is p'ivotallyiconnected.atl42a'to 39' is mounted. Cam- 39 osci11ates the another arm 4|, whichiis'on-the'sha- -4-3carryingcthe'combing bar 44.. y r 4 n A sprocket wheel 56 is mounted-on the-shaft 35 of the doffer roll and a. chain 5i carriedyby thesprocket. passes over the idler :62 (see Fig. 1 andover the sprocket53 on shaft 54..v Aro'1l'55 is. mounted onshaft54 andbpera'te'sfan asTantimounted on the drum at 96 and 9| and provided draft device in connection'with the doffer roll and the main roll 46. g

The sprocket chain 5| also passes over sprocket 56 on the stub shaft 51. A gear 68 is provided on this same shaft in front of the sprocket, and meshes with gear 59 on shaft 66. Also on shaft 60 is a pinion 6| which meshes with an idler 62, which, in turn, meshes with pinion 63 driving conveyor 64.

Shaft 60 passes completely through the apparatus and runs the feed roll 65 which operates pinion 66 operating the upper feed roll 61.

The doifer 36 is provided with an inner sprocket 10 with a chain ll passing over the idler 12 (see Fig. 1) and another idler'l3 and. also a series of sprockets l4, l5 and 16, which areon the rolls l1, l8 and l6.

The large drum 46 is carried by the shaft 22 and is provided with a U-member 8| slidably with a counterweight 92. The U-member carries a yoke 93, which passes over the shaft 22. A box cam 84 is provided on the frame: and a roller 83 carried by the U-member 3| runs in the box cam. The cam is so arranged that the U-member 8| loosens the cotton oneach revolution of the device just before it reaches the doffer roll 36.

The roll 46 is provided with teeth 86 sloping in the direction of movement of the roller. Roll 46 is operated so much more rapidly than dofi'er roll 36, that the motion of the cotton is across the teeth 45, which thus operate to remove the cotton although the roll itself is carried in the same direction as roll 46.

Rolls 11, 18 and 19, however, likewise provided with teeth I60, are run with slow speed.

The preferred speed for the doffer is 10 R. P. M., for the drum 200 R. P. M., for the feed rolls '6 R. P. M. and for the stripper rolls 10 R. P.M. The diameter of the drum for such speeds is 4 feet, for the doffer roll 2 feet, for the feed rolls 4 inches and for the stripper rolls 7 inches.

The stripper roll 11 and the working rolls l8 and 19 operate to make the cotton on the device more uniform in texture.

A clutching device I I0 is provided for stopping ating pulley 26 to the idler 21. 10

In operation of the device, broken bobbins, as heretofore described, are fed on the conveyor 64 and carried to the feed'rolls 65 and 61, by which they are forced upon the'rotating drum 46 and are picked up by the teeth thereof. The-l cotton is stretched out into long parallel strands which are constantly reworkedv by the stripper rollsl'l, 18 and 19. Inasmuch asthe shape of the teeth causes the cotton to adhere firmly theretmthe U-me'mberv8llis required toloosen 'the cotton upon the teeth and adapt it-for 's'trippirigby the dollar roll.

The doffer roll strips the cotton from the roll gear I34 which meshes with the idler I35, which, in turn, is driven by the pinion 29.

The speed at which the various rolls are driven is of vital importance. slowly or at improper relative speeds, the cotton will not be properly sorted and ribboned, and on the contrary, if the motion is too rapid, the cotton is Wrapped into short segments.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, but the appended claim should be construed as broadly as permissible in view of the prior art.

I claim:

The method of preparing cotton threads in snarled thread form for manufacture into oil filter cartridges which comprises: feeding snarled thread material by rotating feeder rolls to a rapidly rotating toothed drum to form a ribbon of long threads upon the drum, Working the threads while on the drum with other rotating toothed wheels, and removing the thread from the drum in a long ribbon having threads of an 46 in long ribbons which are removedtherefrom by the combing bar 44 and deposited upon the 1 incline? tray [30,,from which they are removed ..by the rolls l3! and I32. Roll I3! is mounted T on shaft I33, an'extension of which carries the v (v 1 average length of at least several feet, the peripheral speed of the drum being approximately 2500 feet per minute in excess of the peripheral speed of the feeder rolls. i

' GEORGE C'. WARNER.

If they are driven too 

